Patents by Inventor J. D. Mitchell

J. D. Mitchell has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Center pivot adjustable oarlock
    Patent number: 10207784
    Abstract: The invention relates to a center-axis oarlock and methods of providing constant gearing throughout the arc of an oar in a boat or shell.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: February 19, 2019
    Assignee: TRUEARC LLC
    Inventor: J. D. Mitchell